package org.balthie.demo.opensource.org.codehaus.plexus.compiler.util.scan.mapping;

import java.io.File;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

/**
 * @author jdcasey
 */
public final class SuffixMapping
    implements SourceMapping
{
    private final String sourceSuffix;

    private final Set<String> targetSuffixes;

    public SuffixMapping( String sourceSuffix, String targetSuffix )
    {
        this.sourceSuffix = sourceSuffix;

        this.targetSuffixes = Collections.singleton( targetSuffix );
    }

    public SuffixMapping( String sourceSuffix, Set<String> targetSuffixes )
    {
        this.sourceSuffix = sourceSuffix;

        this.targetSuffixes = Collections.unmodifiableSet( targetSuffixes );
    }

    public Set<File> getTargetFiles( File targetDir, String source )
    {
        Set<File> targetFiles = new HashSet<File>();

        if ( source.endsWith( sourceSuffix ) )
        {
            String base = source.substring( 0, source.length() - sourceSuffix.length() );

            for ( String suffix : targetSuffixes )
            {
                targetFiles.add( new File( targetDir, base + suffix ) );
            }
        }

        return targetFiles;
    }
}
